diff options
| author | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2018-02-17 10:00:28 +0000 |
|---|---|---|
| committer | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2018-02-17 10:00:28 +0000 |
| commit | b51a9bc35854509b9d4b125d232c4ff07ab765f5 (patch) | |
| tree | cf3bacc75f84c4a5a98d34a787a49d1bdfccbeb1 /llvm/lib | |
| parent | b0e4f87fb073d517460fa562d31d94af28ce8bd0 (diff) | |
| download | bcm5719-llvm-b51a9bc35854509b9d4b125d232c4ff07ab765f5.tar.gz bcm5719-llvm-b51a9bc35854509b9d4b125d232c4ff07ab765f5.zip | |
[AMDGPU] Return true in enableMultipleCopyHints().
Enable multiple COPY hints to eliminate more COPYs during register allocation.
Note that this is something all targets should do, see
https://reviews.llvm.org/D38128.
Review: Stanislav Mekhanoshin, Tom Stellard.
llvm-svn: 325425
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.h b/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.h index 00d1e1e8ddc..eb07ad69292 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.h +++ b/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.h @@ -27,6 +27,8 @@ class TargetInstrInfo; struct AMDGPURegisterInfo : public AMDGPUGenRegisterInfo { AMDGPURegisterInfo(); + bool enableMultipleCopyHints() const override { return true; } + /// \returns the sub reg enum value for the given \p Channel /// (e.g. getSubRegFromChannel(0) -> AMDGPU::sub0) unsigned getSubRegFromChannel(unsigned Channel) const; |
